activity
19982026
most citedTemporal correlations versus noise in the correlation matrix formalism: an example of the brain auditory response

64 citations · 103 across the 7 of their papers we have counts for

collaborators

7 papers

cs.CL2026★ 1 cited

Average shortest-path length in word-adjacency networks: Chinese versus English

Jakub Dec, Michał Dolina, Stanisław Drożdż +3

Complex networks provide powerful tools for analyzing and understanding the intricate structures present in various systems, including natural language. Here, we analyze topology o…

q-fin.ST2025★ 1 cited

Detrended cross-correlations and their random matrix limit: an example from the cryptocurrency market

Stanisław Drożdż, Paweł Jarosz, Jarosław Kwapień +2

Correlations in complex systems are often obscured by nonstationarity, long-range memory, and heavy-tailed fluctuations, which limit the usefulness of traditional covariance-based…

q-fin.ST2025★ 3 cited

Filtering amplitude dependence of correlation dynamics in complex systems: application to the cryptocurrency market

Marcin Wątorek, Marija Bezbradica, Martin Crane +2

Based on the cryptocurrency market dynamics, this study presents a general methodology for analyzing evolving correlation structures in complex systems using the -dependent detr…

q-fin.ST2025★ 6 cited

Multifractality and its sources in the digital currency market

Stanisław Drożdż, Robert Kluszczyński, Jarosław Kwapień +1

Multifractality in time series analysis characterizes the presence of multiple scaling exponents, indicating heterogeneous temporal structures and complex dynamical behaviors beyon…

cond-mat.stat-mech2000★ 64 cited

Temporal correlations versus noise in the correlation matrix formalism: an example of the brain auditory response

J. Kwapien, S. Drozdz, A. A. Ioannides

We adopt the concept of the correlation matrix to study correlations among sequences of time-extended events occuring repeatedly at consecutive time-intervals. As an application we…

cond-mat1999

Collectivity in the Brain Sensory Response

S. Drozdz, J. Kwapien, A. A. Ioannides +1

A question of cooperative effects in auditory brain processing on various space- and time-scales is addressed. The experimental part of our study is based on Multichannel Magnetoen…

physics.bio-ph1998★ 28 cited

Cooperative dynamics in auditory brain response

J. Kwapien, S. Drozdz, L. C. Liu +1

Simultaneous estimates of the activity in the left and right auditory cortex of five normal human subjects were extracted from Multichannel Magnetoencephalography recordings. Left,…